Screws and bolts

Anti-loosening washer UNI 8842A/J

cod: RDR1029

Anti-loosening washer

 

Anti-loosening washer UNI 8842A/J: For dynamic loads

Anti-loosening washer UNI 8842 A/J DIN 6798 A (internal and external). Thanks to its serrated structure, this type of washer is suitable for securing on flat surfaces with dimensions greater than its outer diameter. Ideal in dynamic load situations or in the presence of vibrations.

 

Anti-loosening washer UNI 8842A/J – Sizes:

From Ø4mm to Ø20mm

 

Washers
Washers

Available sizes

Ø 4
Ø 5
Ø 6
Ø 8
Ø 10
Ø 12
Ø 14
Ø 16
Ø 18
Ø 20
The anti-loosening washers are designed to improve the stability and safety of bolt or nut connections. They have a serrated edge around their inner or outer perimeter, depending on the model. This distinctive feature allows significant pressure to be applied on the contact surface, preventing accidental unscrewing due to vibration.

They are designed to create a clamping tension between the nut or bolt head and the fastening surface, preventing the system from loosening itself or due to external forces. These components are particularly useful in applications where vibration or adverse environmental conditions could adversely affect the tightness of connections.

In addition to the furniture sector, they are widely used in industries such as construction, automotive, heavy machinery manufacturing, and shipbuilding, where connection safety is of primary importance. They are available in various sizes and surface finishes to meet the specific needs of the application.
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